Brick-making machine.



No. 797,658. PATBNTED AUG. 22, 1905.

H. 0. BARKER.

BRICK MAKING MACHINE.

APPLICATION FILED NOV: 29, 1904 I! SHEETS-SHEET 1.

wibncan No. 797,658. PATBNTED AUG. 22, 1905.

H. O. BARKER.

BRICK MAKING MACHINE. APELIOATION rum) nov, 29, 1904 2 SHEETS-SHEET 2 @uuanfoz l/vlhwoom warm. 1: mumu w. wow-mummmm. wnmuowu. I) c in STATE BRlCK-WlAl (ING WFAQl-llhlfi.

Specification of Letters Patent.

Patented Aug. 22, 1905.

Application filed November 29, 1904. Serial No- 284,76s.

T0 ctZZ ZU7l/07771 it may concern:

Be it known that I, HENRY (J. BARKER, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented new and useful Improvements in Brick-Making Machines, of which the following is a specification.

This invention relates to brick-making machines of that type in which a screw-shaft is employed to operate the dies; and its object is to provide improved means for alternately reversing the direction of revolution of said shaft to project and retract the dies.

The invention consists in the novel features of construction, combination, and arrangement of parts hereinafter described and claimed, reference being had to the accompanying drawings, in which Figure 1 is a side elevation of a brick-making machine embodying my invention. Fig. 2 is a rear end elevation thereof. Fig. 3 is a top plan view, the cross-head appearing in horizontal section. Fig. 4 is a detail view of the screw-shaft. Fig. 5 is a detail view of the cross-head, and Fig. 6 is a detail View of the sliding power-transmitting shaft.

Referring now more particularly to the drawings, 1 represents the frame of the machine, 2 the dies, 3 the rocking levers which actuate the dies, 1 a cross-head transversing guides 5 on the frame 1 and connected by the toggle-levers 6 to the said rocking levers 3, 7 a screw-shaft engaging a screw-threaded opening 8 in the cross-head and adapted to slide or reciprocate the same in the guides 5, 9 a transverse power-shaft carrying at one end a belt-pulley 10 and a master gear-wheel 11 and. at the other end a pinion 12, and 13 a gear-wheel driven by the pinion 12 and carrying a wrist-pin 1 1 to engage the notched end of the delivery-operating rod 15, all of which, with the exception of the screw-shaft, as hereinafterdescribed, may be of any of the constructions in common use.

The screw-shaft 7 is suitably journaled at its ends in the frame 1 and carries at its rear end a bevel-pinion or gear-wheel 16, which is adapted to be alternately engaged by similar pinions or gear-wheels 17 and 18, keyed or otherwise fixedly secured to a shaft 19, arranged transversely at the rear of the frame and slidably mounted in suitable bearings at the sides thereof and provided at one end with a spur-pinion 20, meshing with the master gear-wheel 11, the said pinion being of proper relative Width to mesh with the teeth of the master gear-wheel irrespective of the position of the transverse shaft. The shaft 19 is operated by a sliding block or head 21, mounted to slide in a transverse guideway 22 on the frame 1 and connected at one side by an arm 23 with a shipper-block 24:. The block or head 21 carries two downwardly-projecting fingers 17 and 18, which engage the collars of the bevel-pinions 17 and 18 so as to slide the shaft 19 in one direction or the other when motion is transmitted to the block or head 21. The bevel-pinions 17 and 18 are arranged at such a distance apart that when one of them is in engagement with the bevelpinion 16 on the screw-shaft 7 the other will be out of engagement with said pinion, and vice versa, so that when the shaft 19 ismoved in one direction the pinion 17 will engage the pinion 16 and rotate the screw 7 in one direction, and when the pinion 18 is engaged with the pinion 16 screw 7 will be operated in the reverse direction, as will be readily understood. These reverse operations of the screwshaft 9 effect the bacleand-forth sliding or reciprocation of the cross-head 41, which, through the toggle-levers or links 6, rock the lovers 3 and project or retract the dies 2.

The shipper bar or block 24 is provided with spaced arms and 26, which lie upon opposite sides of the gear-wheel 13 and at different points in the path of revolution of said wheel are respectively engaged by cams 27 and 28, disposed on opposite sides of said wheel, so that as the wheel 13 rotates continuously in one direction the cam 27 will at a certain point in its path of revolution engage the arm 25 and shift the block 21 to the left in Fig. 2 to bring the bevel-pinion 18 into engagement with the pinion 16 to turn the shaft 7 in one direction. As the wheel 18-continues its revolution the cam 28 moves out of engagement with the arm 25 and the cam 28 comes into engagement with the arm 26, thus shifting the shaft 19 to the right in Fig. 2, moving the pinions 17 and 18, respectively, out of and into gear with the pinion 16, whereupon the shaft 7 will be driven in the reverse direction. By this means the shaft 7 will be alternately operated in opposite directions and will thereby reciprocate the cross-head 4: to project and retract the dies 2.

From the foregoing description, taken in connection with the accompanying drawings, the construction and mode of operation of the invention will be understood without a further extended description.

Changes in the form, proportions, and minor details of construction may be made within the scope of the invention without departing from the spirit or sacrificing any of the advantages thereof.

Having thus fully described the invention, What is claimed as new is 1. In a brick-making machine the combination with a die-operating screwshaft, of a sliding shaft, means for operating and sliding said shaft, and reversing-gearing operated by the sliding movements of said shaft to reversely rotate the screw-shaft.

2. In a brick-makingmachine, a die-operating screw-shaft, said shaft carrying a gear, a sliding shaft having gears arranged to alternately engage said gear on the screw-shaft, and driving mechanism for rotating and periodically sliding said sliding shaft.

3. In a brick-making machine, a die-operating screw-shaft, a gear for operating the sliding shaft provided with 'gears adapted to alternately engage the gear connected to, the screw-shaft, means for rotating the sliding shaft, a cam-wheel, and means operated by said cam-wheel for periodically sliding the sliding shaft in reverse directions.

In testimony whereof I aflix my signature in presence of two witnesses.

HENRY C. BARKER.

Witnesses:

JOHN T. BALCH, WVARREN T. DAVIS. 

